How Do Tax Brackets Work?
How federal marginal tax brackets actually work in 2026, why a raise never lowers your take-home pay, and the difference between marginal and effective rate.
Federal income tax is progressive: only the dollars that fall inside a bracket are taxed at that bracket's rate. Moving into a higher bracket never lowers your take-home pay, and your effective (average) rate is always well below your marginal (top-bracket) rate.
The myth vs the reality
The common worry is that a raise will push you into a higher bracket and leave you with less money. That is not how it works. When your taxable income crosses a threshold, only the dollars above the threshold are taxed at the new higher rate. Every dollar below the threshold is still taxed at the lower rates. A raise always increases your after-tax income.
How progressive brackets stack
Think of taxable income as water filling a series of buckets. The first bucket is taxed at 10 percent, the next at 12 percent, then 22, 24, 32, 35, and 37 percent. Each bucket only holds a fixed range of income. Once a bucket is full, the next dollar spills into the bucket above it and is taxed at that higher rate. No dollar is ever taxed twice, and lower buckets keep their lower rates no matter how full the top bucket gets.
Marginal vs effective rate
Marginal rate is the rate on your next dollar of income (the rate of the highest bucket you have reached). Effective rate is total federal tax divided by total taxable income (a weighted average of every bracket you filled). Effective is always lower than marginal. Someone in the 22 percent bracket often has an effective federal rate of 12 to 14 percent.
The 2026 standard deduction comes first
Brackets apply to taxable income, not gross income. In 2026 the standard deduction is 16,100 dollars for single filers, 32,200 for married filing jointly, and 24,150 for head of household. Subtract the deduction first; whatever remains is what the brackets tax.
Worked example
A single filer with 60,000 dollars of taxable income in 2026 pays 10 percent on the first bracket, 12 percent on the next, and 22 percent only on the layer above the 22 percent threshold. Total federal tax is roughly 8,000 dollars, an effective rate near 13 percent, even though the marginal rate is 22 percent.
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